Photographic camera.



No. 702,464, Patented lune I7, |902.

C. F. J. NISS. oooooo RAPHIG CAMERA.

(Application llllllllllllll 1 OOOOOOOO kmmg@ UNITED STATES PATENTDEEICE.

CHRISTIAN FREDERIK J'ULIUS NISS, OF IIINCKLEY, ILIIINQIS.

PHCDTOGRAPHlG CAMERA.

SPECIFICATION forming part of Letters atent No. 702,464, dated .T une17, 1902.

Application iiled September Z5, 1901. Serial No. 76.560. (No model.)

T0 @ZZ wil/0771, t 77u01/ concern:

Be it known that I, CHRISTIAN FREDEEIK JULIUS Niss, a subject of theKing of Denmark, residing at Hinckley, in the county of Dekalb and Stateof Illinois, have invented a new and useful Photographic Camera, ofwhich the following is a specification.

My invention relates to certain improvements in photograph-cameras, andhas forits principal object to provide an attachment which will-enabletheoperator to take pictures of any size Within the limit of the lens.

A -further Object is to so construct 'the attachment as to render itadjustable to plateholders and focusing-glasses of a variety of sizesand to provide for the adjustment ot' the distance betweenthe lens andthe sensitive plate to any distance suitable for either short or longfocus photographs.

With these and other objects in View the invention consists in the novelconstruction and arrangement of parts hereinafter described, illustratedin the accompanying drawings, and particularly pointed out in theappended claims.

In the accompanying drawings, Figure 1 is a perspective view, partly insection, of an attachment for a photograph-camera constructed inaccordance with my invention. Fig. 2 is a longitudinal sectionalelevation of the same. Fig. 3 is a detached perspective view of a detailof construction ot' the device. Figs. L and 5 are detail views of aportion of the bellows, illustrating the construction of the overlappingportionsfor permitting the adjustment of the bellows.

Similar numerals of reference are employed to designate correspondingparts throughout the several views of the drawings.

5 designates a rectangular -i'lange projecting from the front board ofthe attachment and designed to enter or partially enter the opening atthe rearboard of an ordinary camera-that is to say, that portion of thecamera where the focusing-glass and plate-holders are situated. At thispoint of connection any suitable covering-strips may be employed inorder to exclude light; but in all cases such covering-strips are notnecessaryowing to the fact that the attachment will generally be made tofit standard sizes of cameras, the 'flange 5 being made ot the properdimensions to snugly Fit within the rear opening of a four-by-iive oriive-by-eight or suoli other size as may be desired. The flange 5surrounds and in part forms the walls of an opening 7, and at the rearof this opening the front board 6 is provided with a second flange S, towhich is secured a front portion of the bellows 9, the rear portion ofsaid bellows being connected to the various parts of a sectional frame,which may be adjusted vertically or horizontally or in both directionsto accommodate a plate-holder of the required size. The adjustable framecomprises four corner-sections 10, each in the form of a right angle,and the adjacent ends of each section being provided with a dovetailslot 11 for the reception of a similarly-shaped connecting-block 12, thelatter being secured to or formed integral with a front plate 13,extending for the full length of that side of the frame of which itforms a part and being provided with vertically disposed slots 14,through which may pass pins or screws 15, uniting the corner-pieces 10with auxiliary corner-pieces 10, as shown in Fig. 6. The construction ofthe frame is such as to permit ot' its expansion and contraction bothvertically and horizontally, and in order to lock the various parts inan adjusted position and at the same time to exclude light metallicstrips are arranged on each side and corner of the frame. The strips17,each have one end rigidly secured to one ofthe corner-pieces, and theopposite end of each strip is provided with an elongated slot 18,through which may pass a thumb-screw 19 into the opposite corner-piece,as illustrated in Fig. 1. When the sections of the frame are to beadjusted, the various thumb-screws are loosened and the frame is spreaduntil it assumes the desired shape and size. The thumb-screws are thentightened and in various sections of the frame are rigidly securedtogether.

In order to provide a rest and guide for a focusing-glass or aplate-holder, the strips 17 at the top and at one side of the attachmentare extended rearwardly for a sufficient distance to form, in connectionwith the lower board 20, a suitable rest and support for the holder. Asa further precaution clips 21 are arranged at the top, bottom, and atone side of the `trame, each clip being adjustable rear- IOO wardly to agreater or less distance from the frame in order to accommodateplate-holders of varying thickness.

The bellows 9 is in many respects similar to that ordinarily in use; buteach of its sides and its top and bottom are divided longitudinallybetween the sectional trame and 'the flange S, the bellows being thus-formed into four right-angled corner-sections 9', one oi which isattached to each of the corner-sections 10 of the adjustable frame. Onthe inside of the bellows the longitudinal slits are covered by strips25 of a width equal to the length ot the dovetail blocks l2 and eachbe.- ing formed, preferably, of a material similar to that forming themain body of the bellows and following closely all the convolutions otthe latter. The main sections and auxiliary sections ot the bellows arecovered, as usual, with black fabric in order to exclude light, and eachside of each et the strips 25 is connected to the adjacentcori'ier-sections of the bellows by a strip 2o', also formed of blackfabric and permitting of the 'free movement of the bellows in expandingor contracting and at the same time acting at all times to excludelight4 To the front board (5 ot the attachment are secured top, bottom,and side boards 27, which extend rearwardly lor a distance sufficient toinclose the attachment when fully contracted, and to the rear lowerboard is hinged a suitable cover 28, which maybe closed to protect theattachment when not in use.

The focusing-glass which I propose to employ will ordinarily be of asize equal te the size of the adjustable trame when fully contracted,and when the trame is expanded for the taking of pictures ot' largersize the focusing-glass may be turned on and gradually moved across therear of the frame, so that all parts of the exposure area may be seen.

l/Vith an attachment of this character l am enabled not only to increasethe focal length of the camera to any desired distance, but ain-alsoenabled to expose a sensitive plate of any area within the limits ot thelens.

The present invention is not limited to an attachment for a camera, butmay in itself be considered as a camera by providing at its front boarda suitable lens. Pictures of any size may then be taken by the cameraproper by providing a bellows of sullicient length and connecting suchbellows to the described adjustable frame.

vl/*bile the construction herein described and illustrated is thepreferred form of the device, itis apparent that changes may be made inthe form, proportions, and minor details of construction withoutdeparting from the spirit orsacrilieing any ol the advantages of theinvention.

Having thus described my invention, what I claim isl. In a camera, abellows having a rear opening, said bellows being adjustable to permitthe contraction and expansion ol' said opening.

2. ln a camera, a bellows having longitudinal divisions andcovering-strips therefor.

3. In a camera, a bellows divided longitudinally into a number ofsections, coveringstrips arranged at the division-point, saidcovering-strips being' flexibly connected tothe body of the bellows.

In a photographic camera, an extensible rear frame having adjustablemembers to permit its expansion and contraction.

5. ln a photographie camera, a iixed fiorward frame, and extensible rearframe having adjustable members to permit its expansion and contraction,and a laterally-adjust able bellows connecting said frames.

(l. In a photographic camera, atrame hav-- ing corner-sections, centralblocks connecting the corner-sections, a bellows divided longitudinallyand having its main body portion termed into sections connected to saidcorner-sections, covering-strips arranged at the divisional points, saidcovering-strips being secured to said blocks, substantially asspecilied.

7. ln a photograjiihic camera, a rear frame having adjustablecornersections, central blocks adapted to recesses in thecorner-sections, exterior slotted strips on said frame, means forlocking the 'frame in any adjusted position, and an adjustable bellowsconnected to said trame, substantially as specified.

ln a photographic camera, a sectional frame, plate-holding clips securedthereto, said clips being adjustable to dil'lerent distances from therear olf the frame to accommodate the plate-holders of varyingthickness.

El. ln a photographic camera, a sectional frame comprising corner-pieceshaving dove tail slots, centrallydisposed sections lor uniting thecorner-sections, said central sections each comprising a slotted stripdisposed in l'ront ol the corner-pieces and a dovetail block adapted tothe recesses ot the corner-sections, a sectional bellows having portionssecured to the corner-sections and other portions cured to the centralsections, and means for locking said sections in an adjusted position.

l0. ln a photographic camera, a sectional frame, edge strips arrangedext-eriorly thereof, the top and oneof the side strips being extendedrearwardly beyond the trame to form a pocket vl'or the reception ol theplaieholder.

ln testimony that l claim the foregoing as my own l have hereto allixedmy signature in the presence of two witnesses.

CHRISTIAN lflillllllllllt .llililUS NlSS.

".Vi tn esses:

Antenna? W. irmimriiinr, Eireann Ninnsnn.

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